Painting device



NOV- 7, CHRISTMAN PAINTING DEVICE Filed July 11, 1928 2 Sheets-Sheet 1 Nov. 7, 1933. J. M. CHRISTMAN PAINTING DEVICE Filed July 11, 1928 2 Sheets-Sheet 2 f2 5 ll dam M Chzsr'mzv.

Patented Nov. 7, 1933 .PAINTING DEVICE .J 0111} M. Christman, Detroit, Mich., assignor to Packard Motor Car Company," Detroit,"Mich.,' a corporation of Michigan ApplicationJulyll, 1928. 'Serial'No. 291,841

14" Claims.

This invention relates to paintingdevicesand more particularly to striping instruments.

An object of the invention is to provide an instrument for painting aplurality of stripesuniformly in" width throughout their length.

Another object of the invention is to provide an instrument forpainting a plurality of stripes of uniform width on plain or curved surfaces.

Another object of the invention is to provide an instrument for painting a plurality of stripes equally spaced with-respect to each other and of uniform width, the instrument comprising means for deliveringliquid paint from nozzles at a rate. proportionate to the rate of movement of the instrument over the surface under treatment.

A further object of the invention is to provide an instrument for painting two or 'more stripes concomitantly; each of uniform width throughout their length and parallel with respect to one another and to provide means whereby the stripes may be varied in Width according to the fancy of the producer.

.A further object of the inventionis to provide an instrument for painting a plurality of stripes at one and the same time, the painting of each stripe being independently controlled and the painting thereofbeing accomplished with rapidity and accuracy.

A still further object of the invention is to provide a'striping instrument havinga plurality of nozzles each controlled-by a separate pump mechanism adaptable for concomitant operation at a rate proportional tothe rate of movement of the instrument over the surface under treatment.

Yet a further object of the invention is to provide a striping instrument for painting stripes of two or more colors at one and the-same time, the painting of each stripe being controlled by a pump mechanism operated to feed paint through a nozzle in proportion to the rate of movement of the instrument over thesurface under treatment.

A still further object of the invention is to provide a striping instrument for painting a plurality of stripes comprising a plurality'of pump mechanisms operating concomitantly to feed liquid paint through a plurality of nozzles,-each pump delivering paint independently of the other so that interruption to one pump in no way affeats the proper functioning of the other.

Yet a further object of the invention is to provide an instrument for painting a plurality of stripes concomitantly, the instrument'being highly efiicient in operation and yet of marked simplicity as-a whole inrespectto. each of its component parts so that its manufacture is economically facilitated both as'regards its parts and theirassembly.

Other objects of the invention willappear from the following description taken in connection with the drawings, which formapart of this specification, and in which:

Fig. l is a top plan view partly in section;

Fig. 2 is aside elevation partly broken away and partly in dotted line;

Fig. 3 is a fragmentary view illustrating three-gear pump; 1

Fig. 4 is a similar view illustrating the twogear pump;

Fig. 5 is a detail View illustrating the twogear pump and one of the passages leading thereto;

Fig. 6 is a top plan view partly in section, of a modified form illustrating a three-gear pump and two nozzles fed thereby;

Fig. '7 is a side elevation of the form illustrated in Fig. 6; 7

Figs. 8 and 9 are sectional views of the paint distributing shaft;

Fig. 10 is a sectional view taken on line 10-10- of Fig. 6, and

Fig. 11 is a front elevation partly in section of the modified form shown in Figs. 6 and '7.

Referring by numerals: to the drawings, 10 represents a body portion having positioned thereon a plate 11. The plate 11 has three over" lapping transverse bores 12, 13 and 14in which are arranged three very small intermeshing gears l5, l6 and 1'? retained in position by a cover plate 18. "The centergear 16 is keyed on a shaft 19 extending transversely through the plate 11, "the body portion 10 and the cover plate 18. This shaft extends beyond the cover plate to support a drive wheel-20.

Positioned on the opposite side of the body portion 10 is a'plate 21 having-overlapping transversebores- 22 and 23 in whichare arrangedvery small interineshing gears 24 and 25 retained in position by a coverplate 26.

the

The gear: 25 is 1 keyed on the shaft 19 which extends-through the plate 21 and cover plate 26, and supports a-guide roller 2'! oppositely disposed withrespectto the drive wheel 20. The guide roller 27 comprises a substantially spool-shaped roller adapted toenp gage a bead or other suitable means for guiding the instrument.

The body portion-and plates are securedrtogether by suitable screws 28- and positioned in the body portionparallel tothe shaft 19 is a shaft 29 having journaled thereon a guide roller 30 in alignment with the roller 2'7. Positioned intermediate the guide rollers 27 and 30 is a shaft 31 having circumferential longitudinal slots 32 and 33 and an axial bore 34. Mounted on the shaft 31 are nozzles 35, 36 and 3'7 having passages communicating respectively with the slots 32, 33 and the axial bore 34. The connection between the passages in the nozzles and the slots and bore in the shaft is such that slight rise and fall to the nozzle may be had without closing or partially closing the nozzle. The nozzles are pressed to engage the surface under treatrn at by springs 38, each having one end secured in the butt of a nozzle and their other ends slidably engaging a pin 39 secured in the plate 26 and projects normally therefrom. The nozzles are secured upon the shaft 31 by a coil spring 40 suitably housed as indicated at 41.

Mounted in the body portion 10 is a container 42 leading from which is a passage 43. This passage communicates with an intake 44 of the three-gear pump, the cooperative outlet of which is indicated at 45 and leading from the outlet 45 is a passage 46 which communicates with the axial bore 34 in the shaft 31, the bore communicating with the passage in the nozzle 35 which is the outside nozzle. Also leading from the container 42 is a passage 47 communicating with an intake 48 of the three-gear pump, the cooperating outlet 49 of which communicates with a passage 50 leading to and communicating with the passage 33 in the circumference of the shaft 31, and this passage communicates with the passage in the nozzle 37 which is the inside nozzle of the group shown.

The arrangement thus far described relates to means for feeding liquid from a container to and through two nozzles, each supplied with an equal quantity of liquid delivered concomitantly at a rate proportionate to the rate of movement of the instrument over the surface under treatment, so that a uniform quantity of paint is ejected through each nozzle, it, of course, being understood that the number of pumps employed is optional and is varied according to the nur. of stripes it is desired to paint. It is, howe imperative that one pump shall be employed for each nozzle so that the control of each nozzle is independent of the others. By this means uniformity in the stripes is attained and in the event of clogging or other inoperative conditions of one pumping mechanism only one stripe of the number being painted is affected.

Positioned on the body portion 10 is a container 7 51 leading from which is a passage 52 communicating with the intake 53 of the two-gear pump, the outlet 54 of which communicates with a passage 55 leading to and communicating with the circumferential slot 32 in the shaft 31 which communicates with the passage inthe nozzle 36. The nozzle 36 is the central nozzle of the group illustrated.

The nozzles 35, 36 and 3'7 may be grouped together as shown in Fig. 1 to produce a broad stripe or the nozzles may be equally spaced with respect to each other to produce three parallel stripes each of a uniform width. The spacing apart of the nozzles or the relative position of one to the other is dependent upon the arrangement of stripes desired, all of which is in the discretion of the designer.. The adjustment of the nozzles is simply a matter of bending the points thereof to the desired position of the stripe. This particular structure is adaptable for painting stripes of different colors and to accomplish such a result it is only necessary that different colored paints be placed in the two containers provided.

Any form of handle for the instrument may be employed. As shown a shank 56 is secured to the body portion 10 to which a handle, not shown, is attached.

In Figs. 6 to 11 inclusive I have shown a modified form of the invention wherein the body portion comprises a rectangular block 57 slotted as indicated at 58 to receive a plate 59 and a cover plate 60. The plate 59 has therein overlapping transverse bores 61 in which are arranged intermeshing gears 62, 63 and 64, one of which gears, 62, is keyed or otherwise secured on a shaft 65 journaled in the wall of the body portion 5'7 and extending normally from the side thereof, the shaft having keyed thereon a suitable combination drive and guide roller.

The plate 60 is secured in position by pins 67 and screws 68 or other suitable securing means may be employed and mounted in the plate 60 and projecting normally therefrom is a stub shaft 69 on which is mounted for rotation a suitable roller '70.

Threaded in the body portion 5'7 is a sleeve 71 having positioned therein a tubular member '72 provided with a shoulder '73 which engages a shoulder '74 in the end of the sleeve, the shoul-r ders '73 and '74 being held in engagement by a coil spring '75 positioned on the inner end of the tubular member '72 intermediate the sleeve '71 and a suitable washer '76 on the end of the tubular member. I tubular member 71 is free to revolve in the sleeve and yet is held sufficiently tight to prevent leakage between the member 72 and the body portion.

Suitably mounted in the member '72 is a con- This structure is such that the:

tainer '7'7 communicating with the passage in the member '72 which in turn communicates with a passage '78 in the body portion. The passage '78 communicates with the intake '79 of a three-gear pump, the outlet of which is indicated at 80. The

outlet 80 communicates with a passage 81 leading to and communicating with a circumferential I longitudinal slot 82 in a shaft 83 suitably secured in the body portion and normal to the side thereof. Leading from the passage '78 is a short passage 84 leading to an inlet 85 of the pump, thein the apertures 93 in the nozzle and the other 3;-

end engaging an aperture in a suitable support 94.

The sleeves 89 carrying the nozzles 90 are secured on the shaft against displacement by acoil spring 95 positioned on the shaft intermediate the outermost sleeve and a suitable washer 98 secured on the shaft by a pin 9'7, the spring and washer being suitably housed by a thimble 98. As shown, the instrument is provided with a yoke handle 99. However, any desirable form of handle may be employed for the proper manipulation of the instrument, the character of handle being optional.

The type of instrument illustrated in Figs. 6 to 11 inclusive is employed for painting a plural- -ityflof'stripes'ofthe same color and, "therefore, only one containeris employed to feeda plurality of pumps, each controllingthepassag'e of fiuid from the. container? through independent nozzlesso thatthefiowfrom each nozzle will be uniform and in proportion to the rate of movement of the instrument over the surface to be striped.

Although this invention has been described in connection with certain specific embodiments, the principles involved are susceptible of numerous other applications which will readily occur to persons skilled in the art. The invention is, therefore, to be limited only as indicated by the scope of the appended claims.

Having thus described the various features of my invention, what I claim as new and desire to secure by Letters Patent is:

l. A painting instrument comprising a shaft having circumferential grooves therein, a plurality of nozzles arranged on the shaft having passages communicating with the grooves in the shaft and means for retaining the nozzles in position.

2. A painting instrument comprising a shaft having circumferential grooves and an axial bore, a plurality of nozzles positioned on the shaft having passages communicating with the circumferential grooves and axial bore respectively, means for retaining the nozzles in assembled position and means for pressing the nozzles in engagement with a surface.

3. A painting instrument comprising a shaft having circumferential grooves and an axial, bore, a plurality of nozzles on the shaft having passages communicating with the circumferential grooves and axial bore, means for retaining the nozzles on the shaft and means for yieldingly engaging the nozzles with a surface.

4. A painting instrument comprising a body portion, a shaft extending normal from the side thereof, the shaft having a plurality of circumferential grooves and an axial bore, a plurality of nozzles mounted for oscillation on the shaft, the nozzles having passages communicating with the circumferential grooves and axial bore and means for yieldingly retaining the nozzles in engagement with a surface.

5. A painting instrument comprising a body portion, guides therefor, a fixed shaft extending normal from the body portion having a plurality of circumferential grooves and an axial bore, a plurality of nozzles mounted on the shaft having passages therein communicating with the respective grooves and bore and means for yieldingly pressing the nozzles in engagement with a surface, paint containing chambers positioned on the body portion, pump mechanisms connecting the respective paint containing chambers with the circumferential grooves and the axial bore, the pump mechanisms being operated by one of the guides.

6. A striping instrument comprising a shaft having a plurality of ducts therein, a plurality of nozzles mounted on said shaft having paint dispensing passages therein each communicating with one of the shaft ducts, said nozzles hav ing their dispensing ends arranged to engage the surface to be striped, pump means for causing movement of paint through the shaft ducts, and means retaining said nozzles together laterally in a leak-proof relation adjacent the shaft, and a surface engaging roller connected to actuate the pump means.

7. A painting instrument comprising a paint containing chamber, a plurality of nozzles, a sepra-te proportionate to the rate ofthe instruments arate ductcircuit leading from the chamber to each nozzle; a pump mechanismin each duct circult, and surface engaging roller means connected to actuate the puinp mechanisms at a 8. A painting instrument comprising a source of paint supply, a plurality of nozzles, a separate duct circuit leading from the source of supply to each nozzle, a member for rolling upon the surface to be painted, and a pump mechanism inci each duct circuit actuated by rotation of the roller, said pump mechanisms feeding paint through the nozzles at a rate proportionate to the rate of movement of the instrument.

9. A painting instrument comprising a bod590 portion, a plurality of pumps positioned in the body portion, containers carried by the body portion and each connected to the intake of a pump, nozzles carried by the body portion and connected to the outlet of each pump, and a Bur-@295 face engaging roller connected to actuate the pumps concomitantly in proportion to the rate of movement of the instrument across the surface to be striped.

10. An instrument for applying stripes to 9.2.? surface comprising a body, a paint container carried by the body, a pair of shafts extending from the body, a roller fixed to one of the shafts, pump means in the body connected to be driven by the roller shaft and communicating With the con-3 9105 tainer, a plurality of nozzles pivotally mounted on the other shaft, said nozzle shaft having passages therein in communication with the pump in the interior of the nozzles, and spring means associated with the nozzles in a relatiorfillO to hold their dispensing ends against the surface to be striped.

11. An instrument for applying stripes to a surface comprising a body, a pair of shafts extending from the body, a guide roller fixed to one ofJJ the shafts, pump means in the body connected to be driven by the roller shaft and in communication with the container, a plurality of nozzles pivotally mounted on the other shaft, said nozzle shaft having passages therein in communication-i with the pump means and the interior of the nozzles, a support member extending from the body in parallel relation with the nozzle shaft, and spring rods fixed to the support member and engaging the pivoted nozzles in a relation to exert tension thereon in a direction urging the nozzle outlets against the surface to be striped.

12. An instrument for applying stripes to a surface comprising a body, a nozzle pivoted to the body, roller means associated with the body for engaging the surface to be striped, pressure means driven by the roller for moving paint from the body through the nozzle, a support carried by the body, a spring member between the support and the nozzle, said spring means exerting .135 pressure against the nozzle in a direction to hold the dispensing end thereof against the surface traversed by the roller.

13. An instrument for applying stripes to a surface comprising a body, a paint container car-x. ried by the body, a pair of shafts extending from the body, a roller fixed to one of the shafts, a pump gear in the body fixed to the roller shaft, a pair of pump elements in the body driven by the gear, a plurality of nozzles pivotally mounted on the other shaft, said nozzle shaft having individual passages therein leading to the interior of each nozzle, and separate duct means in the body establishing communication between the passages in the shaft and the pump elementsJCi5d adjacent the shaft; to tightly engage laterally, and means for feeding paint through the nozzles including pumps and a surface engaging roller connected to operate said pumps.

JOHN M. CHRISTMAN. 

